Dandy-roll.



No. 688,633. Patented Dec. 10, mm. F. W. GUWRIE.

DANDY ROLL (Application filed Apr. 15, 1901.) (No Model.) I

I jnp'ez z or UNITED STATES ATENT Prio FREDERICK W. GOWRIE, OFSPRINGFIELD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO ALVAN S. CLARK, OFNORTHAMPTON, MASSACHUSETTS.

DANDIYMROLL.

SPECZLEEGATION forming part of Letters Patent No. 688,633, datedDecember 10, 19011.

Application filed April 15, 1901. Serial No. 55,829- (No model.)

T0 (0% whom it may concern:

Beit known that LFREDERIOK W. GOWRIE, a citizen of the United States ofAmerica, and a resident of Springfield, in the county of Hampden andState of Massachusetts, have invented certain new and usefulImprovements in Dandy-Rolls, of which the following is afull, clear, andexact description.

This invention relates to improved dandyrolls, and more particularly tothe construction of the internal open work cylindrical frame on whichare supported the longitudinal rods or wires, the winding-wire, and theouter gauze covering.

It is the object of this invention to devise a novel supportingstructure for the outlying portions of the roll which shall be verylight, very strong and durable, and of a nature to remain intact andwithout liability to distortion or rupture after protracted use.

The invention consists in a dandy-roll having the supporting structurethereof composed of the combination of a wire having a helical coursewith comparatively wide spaces between the helices or convolutionsthereof and a second wire which has in a general way a spiral coursefrom end to end of the structure and which is intermediate between thehelices of the first-named wire and in the same conformation to theperiphery of a cylinder therewith and which is sinuous, whereby thesides thereof alternately have connection, first, with the helix of thefirst-named Wire in advance thereof, and next with the helix of thefirst-named Wire to the rear thereof, and so on repeatedly throughouttheshell.

The improved dandy-roll is illustrated in the accompanying drawings, inwhich-= Figure 1 is a side view of the supporting structure comprisingthe novelty of this invention and showing at one end portion thedandy-roll as in its completed form. Fi 2 is a cross-sectional view online 2 2, Fig. 1.

In the drawings,A represents the structure, which has the conformationof the periphery of a cylinder, which supports the longitudinal wires aa, the winding-wires Z) Z), and the outer gauze covering 0, whichlongitudinal and winding wires and gauze covering, together with thehead (I, are arranged, co1nbined,and connected as usual. The said supporting structure is composed of a regularlyrunning open helical wire fand the irregularly-running wire 9, which is such a modification of thetrue helix as may be best perceived and appreciated by an inspection ofthe drawings, as to have at intervals approaches or contacts, asindicated at t', first with the helix in advance thereof and next withthe helix of the same Wire f to the rear thereof, connection being madeat the points of approach or contact in any suitable manner, butpreferably by soldering. Each portion of the second wire g between thepoints of connection at t' 'i with the regularly-running helical wire fextend in alternately-reversing substantially oblique directions andconstitute braces and stays for the regularly-helical wire, while thelatter cooperates with the ir 7'6 regularly-extending wire 9 to stiffenthe latter. Both of the wires Wound and arranged in connection with eachother as described and to conform to a cylindrical surface, as ofconstitute an adequate and very desirable supporting structure forthefurther and usual portions or equipments of the dandy roll.

The regular and irregularly coursing wires the log or form on which theroll is made,

f and 9 have at the ends of the roll connec- 8c tions or anchorages withthe end heads in any suitable manner and, as is common, for theconnection of the inner supporting structure of dandy-rolls with the endheads thereof.

I claim as advantages inuring to this roll consisting of a wire having ahelical course with comparatively wide spaces between the convolutions,and a second wire which has a sinuous course from end to end of thestructure, and which is arranged intermediate between the helices of thefirst wire, and in the '100 same conformation to the periphery of acylinder therewith, and having portions thereof ['0 of the first wire,first in advance, and next to the rear of said sinuous wire, both said 1wires conforming to the periphery of a cylinder, end heads,longitudinalwires, the winding-wire and the outer gauze covering, allsubstantially as described.

Signed by me at Springfield, Massachusetts, this 10th day of April,1901.

FREDERICK GOWRIE.

Witnesses:

WM. S. BELLOWS, M. A. CAMP ELL.

